The purchaser, at the time of settlement of the purchase, shall make and deliver a proof of purchase to the grower. This proof of purchase document may be a settlement sheet, a check stub, or other legible document showing:
(1) The name of the grower and seller;
(2) The name and address of the purchaser;
(3) The number of bushels of wheat sold;
(4) The date of the purchase; and
(5) The net market price.